我从网址获取JSON以生成联系人姓名的列表视图＆amp;数字。我打算在用户只需点击联系人姓名或电话即可直接拨打电话。但我有问题，以检测检测项目。我试图在'onItemClick'上登录，但似乎没有被调用。你能帮我看看我做错了吗？这是我的代码
package com.example.hk.sample;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import org.apache.http.HttpResponse;
import org.apache.http.HttpVersion;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.params.BasicHttpParams;
import org.apache.http.params.CoreProtocolPNames;
import org.apache.http.params.HttpParams;
import org.apache.http.util.EntityUtils;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.widget.AdapterView;
import android.widget.Button;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.TextView;
import android.widget.Toast;
public class AllAccepted extends Activity {
ListView list;
TextView phone;
TextView name;
ArrayList<HashMap<String, String>> oslist = new ArrayList<HashMap<String, String>>();
//URL to get JSON Array
private static String url;
//JSON Node Names
private static final String TAG_OS = "myjson";
private static final String TAG_VER = "phone";
private static final String TAG_NAME = "name";
JSONArray android = null;
//String matchId = Singleton.getInstance().getMatchIdString();
String matchId = "80";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.all_accepted);
list = (ListView) findViewById(R.id.listView1);
url = "http://demo.com/list.php?match_id="+ matchId;
Log.e("final view", "final layout array list");
oslist = new ArrayList<HashMap<String, String>>();
new JSONParse().execute();
final Button btnHistory = (Button) findViewById(R.id.goHome);
btnHistory.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent myIntent = new Intent(getApplicationContext(), MainActivity.class);
startActivity(myIntent);
}
});
}
protected void onItemClick(ListView l, View v, int position, long id) {
// TODO Auto-generated method stub
Log.e("item clicks", "selected: " + position);
}
private class JSONParse extends AsyncTask<String, String, JSONObject> {
private ProgressDialog pDialog;
@Override
protected void onPreExecute() {
super.onPreExecute();
phone = (TextView)findViewById(R.id.listPhone);
name = (TextView)findViewById(R.id.listName);
pDialog = new ProgressDialog(AllAccepted.this);
pDialog.setMessage("Getting Data ...");
pDialog.setIndeterminate(false);
pDialog.setCancelable(true);
pDialog.show();
}
@Override
protected JSONObject doInBackground(String... args) {
JSONParser jParser = new JSONParser();
// Getting JSON from URL
JSONObject json = jParser.getJSONFromUrl(url);
return json;
}
@Override
protected void onPostExecute(JSONObject json) {
pDialog.dismiss();
try {
// Getting JSON Array from URL
android = json.getJSONArray(TAG_OS);
for(int i = 0; i < android.length(); i++){
JSONObject c = android.getJSONObject(i);
// Storing JSON item in a Variable
String ver = c.getString(TAG_VER);
String name = c.getString(TAG_NAME);
// Adding value HashMap key => value
HashMap<String, String> map = new HashMap<String, String>();
map.put(TAG_VER, ver);
map.put(TAG_NAME, name);
oslist.add(map);
//list=(ListView)findViewById(R.id.listView1);
ListAdapter adapter = new SimpleAdapter(AllAccepted.this, oslist,
R.layout.all_accepted_layout,
new String[] { TAG_VER,TAG_NAME }, new int[] {
R.id.listPhone,R.id.listName});
list.setAdapter(adapter);
}
} catch (JSONException e) {
e.printStackTrace();
}
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
public void onBackPressed() {
}
}
提前致谢。
解决方案：
将此添加到onCreate方法
list = (ListView) findViewById(R.id.listView1);
list.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
Log.e("item clicks", "selected: " + position);
String item = list.getItemAtPosition(position).toString();
String contactNum = ((TextView)view.findViewById(R.id.listPhone)).getText().toString();
Log.e("phone number", contactNum);
Intent intent = new Intent(Intent.ACTION_CALL);
intent.setData(Uri.parse("tel:" + contactNum));
startActivity(intent);
}
});
感谢Kunu的帮助
答案 0 :(得分：1)
在onCreate（）
上使用此功能list.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> arg0, View view, int position,
long id) {
Log.e("item clicks", "selected: " + position);
String contactNum = ((TextView)view.findViewById(R.id.listPhone)).getText().toString();
phoneCall(contactNum);
}
});
并且不要忘记导入import android.widget.AdapterView.OnItemClickListener;
检索号码后，尝试拨打电话
public void phoneCall(String number)
{
String phoneCallUri = "tel:"+number;
Intent phoneCallIntent =new Intent(Intent.ACTION_CALL);
phoneCallIntent.setData(Uri.parse(phoneCallUri));
startActivity(phoneCallIntent);
}
答案 1 :(得分：0)
设置onitemClickListener使用：
listView.setOnItemClickListener(ActivityName.this);
覆盖方法，也在xml中
将focusableInTouchMode设置为false，并将focusable设置为false以用于textviews
希望有所帮助
答案 2 :(得分：0)
在OnCreate list.setOnItemClickListener(new OnItemClickListener() {});中，然后添加未实现方法
public class MainActivity extends Activity {
ListView lView ;
String[] ara={"a","b","c","d","e","f"};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
lView=(ListView)findViewById(R.id.listView1);
ListAdapter adapter = new ArrayAdapter(this,android.R.layout.simple_list_item_1,ara);
lView.setAdapter(adapter);
lView.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
// TODO Auto-generated method stub
}});
}
}